Slotted spectacle frame



Sept. 20, 1949.

Filed April 26, 1947A 1S. ALLEN SLOTTED SPECTACLE FRAME 2 Sheets-'Sheet 1 T TORNEY Sept. 20, 1949. s, ALLEN 2,482,144

. sLoTTED SPECTACLE vFRAME: Filed April 26. 1947 2*'sneets-snee't 2 //v ENTOYR VM M A 7' TORNEY Patented Sept. 20, 1949 UNITED STATES PATENT OFFICE 2,482,144 SLOTTED SPECTACLE FRAME Samuel Allen, New York, N. Y. Application April 26, 1947, Serial No. 744,074

1 Claim. (Cl. 88-47) This invention relates to ophthalmic mountings. It is particularly directed to ophthalmic mountings provided with removable lenses.

An object of this invention is to provide ophthalmic mountings compromising a frame formed with slots through which lenses may be inserted or removed, and highly improved means to releasably retain the lenses in the frames.

Another object of this invention is to provide an ophthalmic mounting having slots in the lens holder through which the lenses may be inserted into said holders and pivoted arms resiliently urged to position for closing said slots for retaining said lenses within said holders, said arms being swingable to positions uncovering said slots to permit removal and replacement of said lenses.

Yet another object of this invention is to provide a strong, rugged and durable eyeglass which shall be relatively inexpensive to manufacture, easy to manipulate, attractive in appearance and yet practical and efficient to a high degree in use.

Other objects of this invention are:

Fig. l is a front elevational view of eyeglasses embodying the invention;

Fig. 2 is a view similar to Fig. l but showing the lenses partially out of the eyeglass frame;

Fig. 3 is a top plan view of the structure shown in Fig. l; 4

Fig. 4 is an enlarged view o part of the structure shown in Fig. broken away.

f Fig. 5 is a view similar to Fig. i but illustratn ing a modified construction;

Fig. 6 is a top plan view of in Fig. 5;

Fig. '7 is a cross-sectional view taken on line 1-1 of Fig. 4;

Fig. 8 is an enlarged cross-sectional view taken on line 8-8 of Fig. l; and

Fig. 9 is a section on line 9-9 of Fig. 5.

Referring in detail now to the drawing, l0 designates an ophthalmic mounting embodying the invention. The same comprises a central bridge portion Il from which extend on either side thereof lens receiving rim portions l2. The bridge portion Il comprises a Wall i3 having the usual curved lower edge It which constitutes a nose rest, a front iace l5, a rear face i6 and an upper edge il.

The lens receiving rim portions l2 are of a shape comparable to the lens to be inserted therein and comprise annular wall portions it which are integrally connected to the bridge portion il. The annular wall portions it Com.-

the structure shown 3, with the cover member prise an outer face I9, an inner face 20, a top inner edge 2l and interconnected thereto side inner edge 2Ia, bottom inner edge 2lb and side inner edge 2Ic. The annular wall portions I8 further comprise outer edges 22 extending from the lower edge I4 of the bridge portion, and interconnected thereto successively, lower outer edges 23, side outer edges 24 and top outer edges 25 which merge with the upper edge il of the bridge portion il. Attaching lugs 2tv extend from the outer edges 26 for pivotally receiving temple bars 2l which are secured thereby by pivot pins 2S.

The circumferential edges 2l, Zia, y2lb and Zic of the rims l2 are formed with a continu ously extending groove 2t. The upper edge 25 of the rims is formed with a rectangular shaped slot 3u which communicates with the groove 2Q extending inwardly from the inner edge 2 i c. The width oi the groove 29 is less than the width of the slot 3d, thereby forming shoulder portions Si. .The inner ends of the slots 29 are enlarged to form recesses 32 having curved rear wall portions 33 and side Walls 3ft.

Means are provided to cover the slots 3u and to this end there are provided elongated cover members tti of a shape to conform to the slots 3@ and adapted to be supported on the shoulders 3i of the slots. The upper surfaces oi the members lie substantially iiush with the upper edge i255 of the rims it. The members t5 comprise an end portion or reduced thickness 36? and constituting an attaching lug, having curved portions 36a conforming to the shape of the recess 32. The end portion 3d is formed with a trans1 verse through opening 3l receiving therein a piv ot rim 38 spanning the recess 32 and having its end portions grounded in the walls Spring means 39 for biasing the cover mem bers 35 in a normally closed position are provided. The same comprises a coiled spring wire having a U-shaped control portion 40 which straddles the upper edge and sides of the lug 3d. The legs of the U-shaped control portion 40 oi the spring are extended towards the pin 38, and comprise a coiled section 4I embracing the pin 3E, as shown in Fig. 7. The ends of the coiled section 4| are extended to form outwardly turned portions 42 which are grounded in suitable openings in the Walls 34 adjacent the pin 38. It will be apparent that the spring means 39 constitutes a tension spring for bracing the pivoted cover members 35 in a normally closed position. The outer ends 43' of the member 35 are suitably 3 curved to conform with the curved upper end portion of the outer edges 24 of the rims I8. 1

It will be apparent that lenses 44 may be readily inserted or removed from the rim portions I8 o1' the ophthalmic mounting by opening the pivoted cover members 35 and either inserting or removing the lenses through the slots 80. When the lenses have been inserted, the spring members 39 will maintain the covers 35 in their closed position.

In Figs. 5 and 6, is shown an ophthalmic mounting Ia embodying the invention and illustratingV a modified construction. The mounting I 0a comprises a. centralbridge portion I I and lens receiving portions I2a. The lens receiving portiom I 2a are similar to that previously described except that cover members 35a are pivoted from the outer ends of the rim portions rather than the inner ends, as previously described, and the spring n members 39 are omitted. To this end, the intersecting upper edge 25 and the side edge 24 of the rims comprise outwardly extending lug portions 35a on which are grounded pivot pins 38a to which f is secured the outer end of the cover members 35a.

Means are provided to maintain the pivoted cover members 35a in a closed position and to this end the wall I3 of the bridge portion Il is formed with.

a pair of aligned grooves 49 on the faces I5 and I6. A U-shaped, locking member 50 is slidably mounted in a straddling position over the upper edge II of the wall I3. 'Ihe lower ends of the legs oi the U-shaped member 50 comprise in turn portions 5I receivable in the grooves 49. 'I'he grooves 49 extend on either side ofthe inner end of the slot 30 and permit the movements of the locking member 50 into and out of engaging relationship with the end portion of the cover member 35a, as shown in Fig. 5. In this embodiment the lenses 44 may be inserted or removed from the lens receivlng portion of the-mounting by sliding the locking members 50 inwardly thereby releasing the cover members 35a. The cover members may then be pivoted to their open position thereby permitting the insertion or removalof lenses from the lens receiving portion of the mounting. When the cover members are pivoted into their closed .Number 4 position, the locking members are slid outwardly thereby engaging the ends oi' the cover members a in their locking position.

I claim:

An ophthalmic mounting comprising lens-receiving rims connected by a bridge, said rims hav. ing upper and lower portions connected by inner and outer side portions. each rim being formed with a groove extending along inner sides of its lower portion and its end portions, the upper portions of said rims being formed with longitudinally extending slots having their ends communicating with ends of the grooves,'upper portions of the slots being widened with respect to the grooves and forming channels having lower por- The following references are of record in the ille of this patent:

UNITED STATES PATENTS Name Date 901,394 Slevin Oct. 20, 1908 1,285,225 King s Nov.` 19, 1918 y 1,454,327 Malcom May 8, 1923 1,986,688 Thiele Jan. 1, 1935 2,362,002 Gluck Nov. 7, 1944 

